WSP00190

• File Number: 8407
• Description: Platte River Basin - River Basin General Publications
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 6/2/1999
• Author: URS Greiner Woodward
• Title: Documentation of Existing Conditions in the Central Platte Valley - Delivery Order Number 86
• Water Supply Pro - Doc Type: Report/Study

4.2 Reasons for Decline ................................................................................. 4-1

4.3 Biology ....... ............... """ ...... "'" ""'" .... "'" .....,........ ....... .......................... 4-2
4.4 Population Status .....................................................................................4-4

4.4.1 Status ........................... .... """""'" ""","""'" ""'" ............... """"" 4-4
4.4.2 Importance of the Platte River .........................___.........................4-5

4.5 Recovery Goals ................ .... "" ............ ...___............. .....___... ..... ...... ........... 4-9
4.6 Suitability of the Existing Baseline for Monitoring............................... 4-10

II
,)
~
1
I
~
I
'I
,I
l

TABLE OF CONTENTS

Section 5

Section 6

Piping Plover .... .............................................................................................................. 5-1

5.1 History... '''''' """""""""""'" ... .... .... """"" ",,""""""'" ............................ 5-1
5.2 Reasons for Decline ............................................................................___.. 5-1
5.2.1 Habitat Alteration and Destruction .............................................. 5-2
5.2.2 Overutilization By Humans .............................___......................... 5-3

5.2.3 Predation...................................................................................... 5-3
5.2.4 Inadequate Regulatory Mechanisms ............................................ 5-3

5.3 Biology ..................... ..................... ....................................... .... ................ 5-3

5.4 Population Status .....................................................................................5-5

5.4.1 Status... ......................................................................................... 5 -5
5.4.2 Importance of the Platte River .....................................................5-6

5.5 Recovery Goals .............___...................................................................... 5-10
5.6 Suitability of the Existing Baseline for Monitoring............................... 5-11

Pallid Sturgeon............................................................................................................... 6-1

6.1 History............. ................................ ......................................................... 6-1
6.2 Reasons for Decline ..........___..........................................___....................... 6-2

6.2.1 Habitat Loss ................................................................................. 6-2
6.2.2 Commercial Harvest ....................................................................6-3
6.2.3 P('llhltinn/Contaminants ............ ................................................... 6-3

6.2.4 Hybridization...................................... ........................,................ 6-3

6.3 Biology........... ................................. ............................................. ............ 6-4
6.4 Importance of the Platte River ................................................................. 6-6
6.5 Recovery Activities and Goals................................................................. 6-9
6.6 Suitability of the Existing Baseline for Monitoring................................. 6-9

Other Threatened or Endangered Species .:................................................................ 7-1

7.1 Bald Eagle................................................................................................7-1

7.1.1 Introduction ................ .................................... .............................. 7-1
7.1.2 Reasons for Decline ..................................................................... 7-1

7.1.3 Biology .............................................................................___.. ....... 7-2
7.1.4 Importance of the Platte River ..................................................... 7-4

7.1.5 Recovery Goals............................................................................7-5

7.2 Eskimo Curlew................................... """"",'''''''''' ... .............................. 7-6
IIRS SIeiIJer WNIfItant CIJf/e
11 saF0097,B6<lI>".doc 6I2l1999(9,52AMWRSGWCFS12 FelIetaI8ewrJ

Section 7